I haven't been moved like this by Music for a long time. Really beautiful raw emotion. I really like his songs featuring his wife. Take your stand is just excellent. To the user saying he can;t hear any similarities between BWJ and Tom Waits' voice.. probably need to get your ears checked mate. By the way there's a kickstarter campaign to record covers of BWJ songs and Tom Waits is doing a few tracks (soul of a man and john the revelator): https://www.kickstarter.com/projects/blindwilliejohnson/help-produce-the-songs-of-blind-willie-johnson/description
Yes he does sound like someone "slashed his throat", but his voice is still 1000x better to listen to than the crap on the X factor - the contrast with his wife's voice on "John The Revelator" creates something special which modern pop/chart can't achieve in the slightest.